Saline-infused sonohysterogram (SIS)
A saline-infused sonohysterogram is a special type of ultrasound exam done in our office. It is used to evaluate the uterus and fallopian tubes and determine if there are any abnormalities such as fibroids, polyps, adhesions, or congenital abnormalities. A small catheter is inserted through the cervix to inject saline into the uterine cavity while a transvaginal ultrasound is used to capture images of the pelvis. The saline fills the uterus and allows for space-occupying lesions to be well-visualized on ultrasound. The SIS is a safe procedure that may cause cramping during the procedure, and may cause spotting, watery discharge, and cramping for a few hours afterwards.